Harvard Forest Petersham FRAM, Massachusetts - MA021 Additional Site Information Saskia L. van de Gevel, Chris Gentry, Sanjaya Bhandari, James H. Speer, NADEF Notes: Ring width data collected for dendroecology during the North American Dendroecological Fieldweek (NADEF). Funding: US National Science Foundation COFECHA output: Chronology file name : MA021.CRN Measurement file name : MA021.RWL Date checked : 27AUG19 Checked by : B. Bauer Beginning year : 1898 Ending year : 2008 Principal investigators: S.L. van de Gevel C. Gentry S. Bhandari J.H. Speer NADEF Site name : Harvard Forest Petersham Site location : Mass. Species information : FRAM WHITE ASH Latitude : 4218 Longitude : -07206 Elevation : M Series intercorrelation: 0.540 Avg mean sensitivity : 0.188 Avg standard deviation : 0.969 Avg autocorrelation : 0.835 Number dated series : 30 Segment length tested : 50 Number problem segments: 10 Pct problem segments : 9.80 PART 5: CORRELATION OF SERIES BY SEGMENTS: Harvard Forest FRAM 15:32 Tue 27 Aug 2019 Page 5 ----------------------------------------------------------------------------------------------------------------------------------- Correlations of 50-year dated segments, lagged 25 years Flags: A = correlation under .3281 but highest as dated; B = correlation higher at other than dated position Seq Series Time_span 1900 1925 1950 1975 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 HF600A 1934 2008 .60 .57 .58 2 hf601a 1921 2008 .50 .55 .52 .43 3 HF601B 1931 2008 .49 .53 .57 4 hf602a 1931 2008 .44 .60 .62 5 hf602b 1919 2008 .68 .71 .63 .64 6 hf603a 1911 2008 .66 .54 .28A .23B 7 hf603b 1912 2008 .60 .60 .22B .21B 8 HF604a 1936 2008 .66 .60 .61 9 hf605b 1921 2008 .53 .56 .45 .48 10 hf607b 1935 2007 .51 .60 .52 11 hf607c 1931 2008 .37 .52 .56 12 HF609a 1924 2008 .71 .70 .56 .56 13 HF609b 1926 2008 .73 .66 .62 14 HF610A 1914 2008 .50 .57 .56 .61 15 HF610B 1922 2008 .59 .61 .54 .59 16 HF611B 1944 2008 .83 .75 .48 17 hf612a 1926 2008 .69 .48 .42 18 HF612B 1922 2008 .77 .83 .51 .37 19 hf613b 1934 2008 .01B .31B .37 20 HF614A 1927 2008 .79 .50 .46 21 HF614B 1898 2008 .48 .68 .47 .42 22 HF615a 1945 2008 .40 .50 .53 23 hf615b 1952 2008 .66 .65 24 hf616a 1916 2008 .65 .67 .34 .30A 25 HF616b 1923 2008 .72 .73 .64 .68 26 hf617b 1917 2008 .77 .77 .44 .18B 27 HF618B 1936 2008 .41 .42 .49 28 HF619a 1943 2008 .63 .42 .40 29 hf620a 1935 2008 .37 .36B .30A 30 hf620b 1947 2008 .46 .51 .54 Av segment correlation .63 .58 .50 .48 PART 7: DESCRIPTIVE STATISTICS: Harvard Forest FRAM 15:32 Tue 27 Aug 2019 Page 8 ----------------------------------------------------------------------------------------------------------------------------------- Corr //-------- Unfiltered --------\\ //---- Filtered -----\\ No. No. No. with Mean Max Std Auto Mean Max Std Auto AR Seq Series Interval Years Segmt Flags Master msmt msmt dev corr sens value dev corr () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 1 HF600A 1934 2008 75 3 0 .600 1.53 4.04 .711 .695 .227 2.64 .435 -.001 1 2 hf601a 1921 2008 88 4 0 .466 2.33 5.03 1.055 .913 .135 2.75 .479 -.072 1 3 HF601B 1931 2008 78 3 0 .504 1.78 4.84 .921 .918 .129 2.49 .443 -.014 1 4 hf602a 1931 2008 78 3 0 .509 1.48 4.47 .715 .798 .200 2.84 .546 .077 1 5 hf602b 1919 2008 90 4 0 .640 2.75 5.20 1.050 .728 .236 2.58 .487 .083 1 6 hf603a 1911 2008 98 4 2 .466 2.06 4.77 .824 .848 .167 2.58 .456 -.081 1 7 hf603b 1912 2008 97 4 2 .480 2.05 5.19 1.289 .897 .180 2.61 .440 -.058 1 8 HF604a 1936 2008 73 3 0 .652 2.70 6.76 1.483 .917 .178 2.53 .438 -.037 1 9 hf605b 1921 2008 88 4 0 .547 2.05 5.43 1.224 .879 .217 2.57 .432 .026 1 10 hf607b 1935 2007 73 3 0 .500 1.80 7.24 1.448 .921 .148 2.64 .466 -.048 1 11 hf607c 1931 2008 78 3 0 .437 1.84 6.84 1.481 .929 .177 2.78 .514 -.077 1 12 HF609a 1924 2008 85 4 0 .649 2.94 6.95 1.459 .862 .151 2.71 .428 -.019 1 13 HF609b 1926 2008 83 3 0 .695 2.40 3.69 .617 .718 .151 2.35 .324 -.082 1 14 HF610A 1914 2008 95 4 0 .554 2.00 4.72 1.048 .906 .156 2.59 .420 -.030 1 15 HF610B 1922 2008 87 4 0 .596 2.08 6.10 1.041 .866 .177 2.60 .443 -.083 2 16 HF611B 1944 2008 65 3 0 .661 3.22 5.07 .930 .717 .189 2.69 .556 -.037 1 17 hf612a 1926 2008 83 3 0 .584 1.51 3.53 .801 .876 .168 2.71 .543 -.093 1 18 HF612B 1922 2008 87 4 0 .605 1.75 3.96 .944 .831 .207 2.65 .526 -.056 1 19 hf613b 1934 2008 75 3 2 .151 1.49 4.24 .929 .896 .207 2.93 .427 -.030 1 20 HF614A 1927 2008 82 3 0 .659 1.99 5.70 1.272 .867 .193 2.83 .373 -.020 1 21 HF614B 1898 2008 111 4 0 .445 1.00 2.33 .508 .792 .214 2.79 .470 -.068 1 22 HF615a 1945 2008 64 3 0 .456 1.54 3.68 .769 .817 .202 2.55 .539 -.049 2 23 hf615b 1952 2008 57 2 0 .665 2.11 3.78 .714 .659 .216 2.77 .694 -.093 1 24 hf616a 1916 2008 93 4 1 .505 1.86 4.02 .927 .825 .222 2.69 .461 -.008 1 25 HF616b 1923 2008 86 4 0 .706 2.32 4.33 .937 .763 .223 2.68 .548 -.086 1 26 hf617b 1917 2008 92 4 1 .514 1.13 2.92 .591 .840 .188 2.64 .447 -.049 1 27 HF618B 1936 2008 73 3 0 .464 2.45 5.06 1.054 .858 .216 2.56 .387 .008 1 28 HF619a 1943 2008 66 3 0 .588 1.45 2.85 .506 .750 .161 2.64 .431 -.011 3 29 hf620a 1935 2008 74 3 2 .419 1.83 4.20 1.068 .850 .229 2.52 .443 -.017 4 30 hf620b 1947 2008 62 3 0 .510 1.72 3.11 .693 .825 .168 2.70 .446 -.018 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2436 102 10 .540 1.96 7.24 .969 .835 .188 2.93 .465 -.035